1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
<?php
/**
* @copyright 2019, Georg Ehrke <oc.list@georgehrke.com>
*
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DAV\Traits;
use OCA\DAV\CalDAV\Proxy\Proxy;
use OCA\DAV\CalDAV\Proxy\ProxyMapper;
use Sabre\DAV\Exception;
/**
* Trait PrincipalTrait
*
* @package OCA\DAV\Traits
*/
trait PrincipalProxyTrait {
/**
* Returns the list of members for a group-principal
*
* @param string $principal
* @return string[]
* @throws Exception
*/
public function getGroupMemberSet($principal) {
$members = [];
if ($this->isProxyPrincipal($principal)) {
$realPrincipal = $this->getPrincipalUriFromProxyPrincipal($principal);
$principalArray = $this->getPrincipalByPath($realPrincipal);
if (!$principalArray) {
throw new Exception('Principal not found');
}
$proxies = $this->proxyMapper->getProxiesOf($principalArray['uri']);
foreach ($proxies as $proxy) {
if ($this->isReadProxyPrincipal($principal) && $proxy->getPermissions() === ProxyMapper::PERMISSION_READ) {
$members[] = $proxy->getProxyId();
}
if ($this->isWriteProxyPrincipal($principal) && $proxy->getPermissions() === (ProxyMapper::PERMISSION_READ | ProxyMapper::PERMISSION_WRITE)) {
$members[] = $proxy->getProxyId();
}
}
}
return $members;
}
/**
* Returns the list of groups a principal is a member of
*
* @param string $principal
* @param bool $needGroups
* @return array
* @throws Exception
*/
public function getGroupMembership($principal, $needGroups = false) {
list($prefix, $name) = \Sabre\Uri\split($principal);
if ($prefix !== $this->principalPrefix) {
return [];
}
$principalArray = $this->getPrincipalByPath($principal);
if (!$principalArray) {
throw new Exception('Principal not found');
}
$groups = [];
$proxies = $this->proxyMapper->getProxiesFor($principal);
foreach ($proxies as $proxy) {
if ($proxy->getPermissions() === ProxyMapper::PERMISSION_READ) {
$groups[] = $proxy->getOwnerId() . '/calendar-proxy-read';
}
if ($proxy->getPermissions() === (ProxyMapper::PERMISSION_READ | ProxyMapper::PERMISSION_WRITE)) {
$groups[] = $proxy->getOwnerId() . '/calendar-proxy-write';
}
}
return $groups;
}
/**
* Updates the list of group members for a group principal.
*
* The principals should be passed as a list of uri's.
*
* @param string $principal
* @param string[] $members
* @throws Exception
*/
public function setGroupMemberSet($principal, array $members) {
list($principalUri, $target) = \Sabre\Uri\split($principal);
if ($target !== 'calendar-proxy-write' && $target !== 'calendar-proxy-read') {
throw new Exception('Setting members of the group is not supported yet');
}
$masterPrincipalArray = $this->getPrincipalByPath($principalUri);
if (!$masterPrincipalArray) {
throw new Exception('Principal not found');
}
$permission = ProxyMapper::PERMISSION_READ;
if ($target === 'calendar-proxy-write') {
$permission |= ProxyMapper::PERMISSION_WRITE;
}
list($prefix, $owner) = \Sabre\Uri\split($principalUri);
$proxies = $this->proxyMapper->getProxiesOf($principalUri);
foreach ($members as $member) {
list($prefix, $name) = \Sabre\Uri\split($member);
if ($prefix !== $this->principalPrefix) {
throw new Exception('Invalid member group prefix: ' . $prefix);
}
$principalArray = $this->getPrincipalByPath($member);
if (!$principalArray) {
throw new Exception('Principal not found');
}
$found = false;
foreach ($proxies as $proxy) {
if ($proxy->getProxyId() === $member) {
$found = true;
$proxy->setPermissions($proxy->getPermissions() | $permission);
$this->proxyMapper->update($proxy);
$proxies = array_filter($proxies, function(Proxy $p) use ($proxy) {
return $p->getId() !== $proxy->getId();
});
break;
}
}
if ($found === false) {
$proxy = new Proxy();
$proxy->setOwnerId($principalUri);
$proxy->setProxyId($member);
$proxy->setPermissions($permission);
$this->proxyMapper->insert($proxy);
}
}
// Delete all remaining proxies
foreach ($proxies as $proxy) {
// Write and Read Proxies have individual requests,
// so only delete proxies of this permission
if ($proxy->getPermissions() === $permission) {
$this->proxyMapper->delete($proxy);
}
}
}
/**
* @param string $principalUri
* @return bool
*/
private function isProxyPrincipal(string $principalUri):bool {
list($realPrincipalUri, $proxy) = \Sabre\Uri\split($principalUri);
list($prefix, $userId) = \Sabre\Uri\split($realPrincipalUri);
if (!isset($prefix) || !isset($userId)) {
return false;
}
if ($prefix !== $this->principalPrefix) {
return false;
}
return $proxy === 'calendar-proxy-read'
|| $proxy === 'calendar-proxy-write';
}
/**
* @param string $principalUri
* @return bool
*/
private function isReadProxyPrincipal(string $principalUri):bool {
list(, $proxy) = \Sabre\Uri\split($principalUri);
return $proxy === 'calendar-proxy-read';
}
/**
* @param string $principalUri
* @return bool
*/
private function isWriteProxyPrincipal(string $principalUri):bool {
list(, $proxy) = \Sabre\Uri\split($principalUri);
return $proxy === 'calendar-proxy-write';
}
/**
* @param string $principalUri
* @return string
*/
private function getPrincipalUriFromProxyPrincipal(string $principalUri):string {
list($realPrincipalUri, ) = \Sabre\Uri\split($principalUri);
return $realPrincipalUri;
}
}
|
